SLVSJM5 August   2025 BQ79758B-Q1

PRODUCTION DATA  

  1.   1
  2. 1Features
  3. 2Applications
  4. 3Description
  5. 4Device and Documentation Support
    1. 4.1 Device Support
      1. 4.1.1 Third-Party Products Disclaimer
    2. 4.2 Documentation Support
      1. 4.2.1 Related Documentation
    3. 4.3 Receiving Notification of Documentation Updates
    4. 4.4 Support Resources
    5. 4.5 Trademarks
    6. 4.6 Electrostatic Discharge Caution
    7. 4.7 Glossary
  6. 5Mechanical, Packaging, and Orderable Information
    1. 5.1 Package Option Addendum
    2. 5.2 Tape and Reel Information
    3. 5.3 Mechanical Data

3 Description

The BQ79758B-Q1 provides high-accuracy cell voltage measurements for up to 18S battery modules in high-voltage battery management systems in xEV/EV. The monitor offers different channel options in the same package type, providing pin-to-pin compatibility and supporting high reuse of the established software and hardware across any platform. This device has a state-of-the-art ADC architecture/measurement system meeting stringent automotive standard and safety requirements. With the daisy-chain isolated by transformer (or capacitor), the device is designed for centralized or distributed architectures in xEV powertrain.

Package Information
PART NUMBER (2)PACKAGE (1)BODY SIZE (NOM)
BQ79758B-Q1HTQFP (64-pin)10.00mm × 10.00mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
(2) All mentions of BQ79758 in drawings in this document refer to part number BQ79758B-Q1
BQ79758B-Q1 Simplified System DiagramSimplified System Diagram